Hamburger cooker



FIG. 1 is a perspective view of my new design for a hamburger cooker in closed condition;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view of the FIG. 1 design in partially open condition;

FIG. 6 is a perspective view of the FIG. 1 design in dis-assembled condition;

FIG. 7 is a perspective view of the FIG. 1 design in open condition; and

FIG. 8 is a perspective view showing the bottom surface of the food support tray, shown in FIGS. 5 and 6. 

The ornamental design for a hamburger cooker, as shown and described. 